<template>
<div>
  <el-card>
    <h1>Left的值{{count}}</h1>
    <button @click="count++">点我给count++</button>
  </el-card>
</div>
</template>

<script>
export default {
  name: "Left",
  data(){
    return{
      count:1
    }
  }
}
</script>

<style scoped>

</style>
